Heyeon Park1, Johanna Inhyang Kim1, Sohee Oh2, Jeong-Hyun Kim3. 1. Department of Public Health Medical Services, Seoul National University Bundang Hospital, Seongnam, South Korea. 2. Department of Biostatistics, Seoul Metropolitan Government Seoul National University Boramae Medical Center, South Korea. 3. Department of Public Health Medical Services, Seoul National University Bundang Hospital, Seongnam, South Korea; Mental Health & Behavioral Medicine Services for Clinical Departments, Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Psychiatry, Seoul National University Bundang Hospital, Seongnam, South Korea. Electronic address: jhkim@snubh.org.
Abstract
BACKGROUND: Despite attempts to identify predictors for posttraumatic stress disorder (PTSD) in firefighters, it is still uncertain whether occupational stress factors impact PTSD symptoms. Given the emotionally taxing job environment of firefighters, this population has been known to suffer from emotional labor. In this study, we investigated whether and how emotional labor, one of the occupational stress factors, influences the severity of PTSD symptoms in firefighters. METHODS: A total of 7151 Korean firefighters (age range 21-60 years, 6484 (90.7%) male participants) were included for analysis. PTSD symptoms were assessed using the PTSD Checklist-Civilian Version, and the demands of emotional labor and emotional damage were measured using the Korean Emotional Labor Scale. Hierarchical multivariate regression was performed. RESULTS: Hierarchical multivariate regression showed that a 2-way interaction between the presence of recent trauma and emotional damage was significantly associated with the severity of PTSD symptoms, even after adjusting for demographic factors, job-related factors, and perceived stress. The independent main effects of emotional labor were not significantly associated with PTSD symptoms. CONCLUSION: These findings suggest that emotional labor can be a risk factor that makes firefighters vulnerable to PTSD symptoms by modulating the effect of traumatic experiences on PTSD symptoms.
BACKGROUND: Despite attempts to identify predictors for posttraumatic stress disorder (PTSD) in firefighters, it is still uncertain whether occupational stress factors impact PTSD symptoms. Given the emotionally taxing job environment of firefighters, this population has been known to suffer from emotional labor. In this study, we investigated whether and how emotional labor, one of the occupational stress factors, influences the severity of PTSD symptoms in firefighters. METHODS: A total of 7151 Korean firefighters (age range 21-60 years, 6484 (90.7%) male participants) were included for analysis. PTSD symptoms were assessed using the PTSD Checklist-Civilian Version, and the demands of emotional labor and emotional damage were measured using the Korean Emotional Labor Scale. Hierarchical multivariate regression was performed. RESULTS: Hierarchical multivariate regression showed that a 2-way interaction between the presence of recent trauma and emotional damage was significantly associated with the severity of PTSD symptoms, even after adjusting for demographic factors, job-related factors, and perceived stress. The independent main effects of emotional labor were not significantly associated with PTSD symptoms. CONCLUSION: These findings suggest that emotional labor can be a risk factor that makes firefighters vulnerable to PTSD symptoms by modulating the effect of traumatic experiences on PTSD symptoms.